feat: rewrite deep agents on top of createAgent
#42
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BREAKING CHANGE: Major refactor from custom LangGraph implementation to new langchain createAgent API **Architecture Migration:** - Replace createReactAgent with createAgent API from langchain package - Migrate from custom state management to middleware-based architecture - Remove custom DeepAgentState and model configuration in favor of built-in patterns **Package Updates:** - Upgrade to @langchain/anthropic@alpha, @langchain/langgraph@next - Add langchain package as main dependency with createAgent support - Update @langchain/core to local development version **Code Reorganization:** - Move tools from src/tools.ts to modular middleware pattern (src/middleware/) - Simplify type definitions in src/types.ts with Zod schema validation - Refactor src/subAgent.ts to use createAgent with middleware integration - Update src/graph.ts and src/index.ts for new API patterns **Removed Files:** - src/state.ts: Custom state management no longer needed - src/model.ts: Default model configuration handled by createAgent - src/interrupt.ts: Interrupt handling integrated into middleware **New Middleware System:** - src/middleware/fs.ts: File system operations middleware - src/middleware/todo.ts: Todo management middleware - src/middleware/index.ts: Middleware exports and configuration **Configuration:** - Fix tsconfig.json extends path for @tsconfig/recommended - Update examples/research/research-agent.ts for new API - Upgrade TypeScript ESLint and other dev dependencies This migration provides a more maintainable architecture with better separation of concerns and aligns with the latest LangChain patterns for agent development.
feat: Add a name property value to ToolMessage
This reverts commit 2292cd2.
…s into nh/pluggable-fs
feat: add pluggable filesystem
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Supersedes #32